include: Add defines for SBI CPPC extension

Add SBI CPPC extension related defines to the
SBI ecall interface header.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

diff --git a/include/sbi/sbi_ecall_interface.h b/include/sbi/sbi_ecall_interface.h
index 4597358..dee2dd9 100644 (file)
--- a/include/sbi/sbi_ecall_interface.h
+++ b/include/sbi/sbi_ecall_interface.h
@@ -31,6 +31,7 @@
 #define SBI_EXT_PMU                            0x504D55
 #define SBI_EXT_DBCN                           0x4442434E
 #define SBI_EXT_SUSP                           0x53555350
+#define SBI_EXT_CPPC                           0x43505043
 
 /* SBI function IDs for BASE extension*/
 #define SBI_EXT_BASE_GET_SPEC_VERSION          0x0
@@ -256,6 +257,39 @@ enum sbi_pmu_ctr_type {
 #define SBI_SUSP_SLEEP_TYPE_LAST               SBI_SUSP_SLEEP_TYPE_SUSPEND
 #define SBI_SUSP_PLATFORM_SLEEP_START          0x80000000
 
+/* SBI function IDs for CPPC extension */
+#define SBI_EXT_CPPC_PROBE                     0x0
+#define SBI_EXT_CPPC_READ                      0x1
+#define SBI_EXT_CPPC_READ_HI                   0x2
+#define SBI_EXT_CPPC_WRITE                     0x3
+
+enum sbi_cppc_reg_id {
+       SBI_CPPC_HIGHEST_PERF           = 0x00000000,
+       SBI_CPPC_NOMINAL_PERF           = 0x00000001,
+       SBI_CPPC_LOW_NON_LINEAR_PERF    = 0x00000002,
+       SBI_CPPC_LOWEST_PERF            = 0x00000003,
+       SBI_CPPC_GUARANTEED_PERF        = 0x00000004,
+       SBI_CPPC_DESIRED_PERF           = 0x00000005,
+       SBI_CPPC_MIN_PERF               = 0x00000006,
+       SBI_CPPC_MAX_PERF               = 0x00000007,
+       SBI_CPPC_PERF_REDUC_TOLERANCE   = 0x00000008,
+       SBI_CPPC_TIME_WINDOW            = 0x00000009,
+       SBI_CPPC_CTR_WRAP_TIME          = 0x0000000A,
+       SBI_CPPC_REFERENCE_CTR          = 0x0000000B,
+       SBI_CPPC_DELIVERED_CTR          = 0x0000000C,
+       SBI_CPPC_PERF_LIMITED           = 0x0000000D,
+       SBI_CPPC_ENABLE                 = 0x0000000E,
+       SBI_CPPC_AUTO_SEL_ENABLE        = 0x0000000F,
+       SBI_CPPC_AUTO_ACT_WINDOW        = 0x00000010,
+       SBI_CPPC_ENERGY_PERF_PREFERENCE = 0x00000011,
+       SBI_CPPC_REFERENCE_PERF         = 0x00000012,
+       SBI_CPPC_LOWEST_FREQ            = 0x00000013,
+       SBI_CPPC_NOMINAL_FREQ           = 0x00000014,
+       SBI_CPPC_ACPI_LAST              = SBI_CPPC_NOMINAL_FREQ,
+       SBI_CPPC_TRANSITION_LATENCY     = 0x80000000,
+       SBI_CPPC_NON_ACPI_LAST          = SBI_CPPC_TRANSITION_LATENCY,
+};
+
 /* SBI base specification related macros */
 #define SBI_SPEC_VERSION_MAJOR_OFFSET          24
 #define SBI_SPEC_VERSION_MAJOR_MASK            0x7f